Firecracker



FIG. 1 is a front elevational view of a firecracker of my design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a perspective view thereof. 

The ornamental design for a firecracker, as shown and described. 